Steam iron



FIG. 1 is a front view of the steam iron showing the new design;

FIG. 2 is a rear view of the steam iron;

FIG. 3 is a top view of the steam iron;

FIG. 4 is a bottom view of the steam iron.

FIG. 5 is a side view of the steam iron;

FIG. 6 is another side view of the steam iron; and,

FIG. 7 is a front perspective view of the steam iron.

The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a steam iron, as shown and described. 